Lena Dunham filming the final season of "Girls" on May 10, 2016 in New York City. (Photo by Steve Sands/GC Images)

On Tuesday, Lena Dunham surprised fans by releasing a book titled Is It Evil Not to Be Sure?, a collection of her journals from a decade ago sold out within a day. By Wednesday — poof! — it had sold out. All the proceeds of the 56-page chapbook will be donated to the mentoring program Girls Write Now. While the 2,000 signed copies of the first print all sold out (at $25 dollars apiece), the collection is still up for sale as an e-book. The book consists of diaries from the years 2005 and 2006 that Dunham recently discovered on an old hard drive and wrote while recovering from surgery and feeling “painfully adult.” She explained on her Lenny website, “I was, of course, full of the kind of mortification that is part and parcel with meeting a former version of yourself, a woefully misguided girl desperate to be embraced by even the least exemplary specimens of young American malehood. But I was also moved by — maybe even proud of — how carefully I had recorded that period of time, my younger self’s commitment to capturing the kinds of hyper-internal formative moments so often lost to adulthood.” She added that she believes that women chronicling their lives, however mundane, is a “radical act” and felt it was appropriate that it should benefit Girls Write Now. The writer, actor and director will launch her own publishing imprint with Random House next year, under the name of Lenny, which will publish titles covering “feminism, style, health, politics, friendship and everything else.”